22IO 



THE DERMATOZOIASES 



straight. While the advancing end progresses, the opposite end 

 slowly fades away. The duration of the malady is long' — generally 

 several months, but occasionally two or three years. There is much 

 pruritus. 



Treatment. — Hypodermic injections of various disinfectants 

 have been ;ried with little success. Hut chins recommends a 

 cocaine injection, followed by the injection of i or 2 drops of 

 chloroform. 



Circinate Creeping Disease. ' 



In Ceylon cases are met with of a peculiar eruption, which is 

 possibly of the same nature as the creeping disease previously 

 described, though larvae were not found. 



The condition is characterized by the presence on the back of 

 the hands of a ringed eruption, with markedly elevated, thick, 

 angry, red borders. In all the cases the eruption started suddenly 

 after the patient had been gardening and handhng turf. There 

 may be one ring or several. The skin inside the rings is normal. 

 The rings expand excentrically. The patients complain of the 

 extreme irritation, and in all the cases stated that they felt some- 

 thing creeping along the red circles, as though a v/orm had got 

 inside in handling the turf. The duration varies, but it generally 

 does not exceed two or three weeks. 



etiology. — The eruption does not appear to be a form of derma- 

 titis venenata, due to touching certain plants and vegetables. 

 Possibly it is due to some larva entering the skin, but so far the 

 search for larvse has been fruitless. No trichophyton-hke fungus 

 is present. | 



Treatment. — Liq. plumbi and other soothing applications are 

 generally useless. The best results are obtained by continuously 

 applying on lint a diluted alcohohc solution of resorcin: — 



Resorcin . . . . . . . . . . 3i. 



Sp. rect. . . . . . . . . . . 



Aq.dest. .. .. .. .. .. ad §xii 



Dermatitis Macrogyrata. 



Dermatitis macrogyrata is a rare condition found in Ceylon and 

 South India, of unknown causation, and characterized by the 

 presence on the palms of the hands of one or two very large gyra- 

 tions formed by scaly and crusty lesions. On removing the crusts 

 and scales a broad shallow furrow can be seen situate in the epi- 

 dermis. The eruption is associated with pain, sometimes severe, 

 but there is seldom any pruritus. The condition is most persistent, 

 and in our cases neither fly larvse could be found nor fungi isolated. 

 In none of our cases was there history of syphilis, and potassium 

 iodide and mercury had no effect. The treatment is most unsatis- 

 factory. Antimycotic -substances, such as chrysarobin and tincture 

 of iodine, have no effect. The application of a lotion of liquor 



